Another twist on the zombie genre – a neurological pandemic has swept the United Kingdom, but those with the infection don’t die immediately, becoming increasingly incoherent, unstable and violent. The infection mutated, went airborne and the government’s so-called vaccine only slowed down the symptoms. The result: the infectious period was extended and the disease spread unnoticed and the virus wiped out most of the misinformed population. Six months later, and the landscape is littered with wandering psychopaths and scavenging survivors.